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3 years ago

State whether the data given is continuous (C) or discrete (D):

Mathematics

1 answer:

Marta_Voda [28]3 years ago

5 0

Answer:

Step-by-step explanation:

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A medical device company knows that 11% of patients experience injection-site reactions with the current needle. If 4 people rec

Orlov [11]

Answer: 0.6274

Step-by-step explanation:

Given: The proportion of patients experience injection-site reactions with the current needle : p=0.11

Sample size : n= 4

Let x be a binomial random variable that represents the people get an injection-site reaction.

Binomial probability formula: $P(X=x)= ^nC_x p^x(1-p)^{n-x}$

The required probability : P(x=0)

$=\ ^4C_0(0.11)^0(1-0.11)^4\\\\=(1)(1)(0.89)^4\\\\=0.62742241\\\approx0.6274$

Hence, the probability that none of the 4 people get an injection-site reaction = 0.6274

6 0

4 years ago

A test subject is randomly selected for a pregnancy test. What is the probability of getting a subject who is not pregnant, give

Scilla [17]

First we need to choose from "Posivite Test" column:
$\frac{12}{12+78} = \frac{12}{90} = 0,1333(3)$

3 0

4 years ago

Read 2 more answers

What are the coordinates of the x-intercept of the equation -5y=4-2x?

umka2103 [35]

The x intercept of -5y=4-2x equals (2,0)

6 0

4 years ago

Draw a Hasse diagram of the partial order << of the set {2,3,4,6,8,9,10,12} where a << b iff b is divisible by a.

Ray Of Light [21]

Step-by-step explanation:

Consider the provided set {2,3,4,6,8,9,10,12}

Let the set is A.

$A={(2 \prec 4), (2 \prec 6), (2 \prec 8), (2 \prec 10), (2 \prec 12), (3 \prec 6), (3 \prec 9), (4 \prec 8), (4 \prec 12), (6 \prec 12)}$

Hence the required Hasse diagram is shown in figure 1:

In the Hasse diagram 2 and 3 are on the same level as they are not related.

The next numbers are 4, 6, 9, and 10. 4, 6 and 10 are divisible by both 2. 6 and 9 are divisible by 3. Then 8 and 12 are divisible by 4 also 12 is divisible by 6.

Hence, the required diagram of the partial order of the set {2,3,4,6,8,9,10,12} is shown in figure 1.

8 0

3 years ago

If the length of a rectangle is decreased by 4 cm and the width is increased by 5 cm, the result will be a square, the area of w

erastova [34]

Let x represent the side length of the square. Then
(x +4)*(x -5) +40 = x^2
x^2 -x -20 +40 = x^2
20 = x

The rectangle is 15 cm by 24 cm, and its area is 360 cm^2.

5 0

3 years ago